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Last seen: Sep 18, 2026
Our house is not dissimilar to yours on paper. We had a heat loss calculation of around 7.4kW and previously used around 1600-1800L of oil per year, s...
Thank you for correcting my units, but you may want to check your own as you seem to be 3 orders of magnitude out.
@editor Thanks. For reference, here is the statutory instrument laid before parliament, for those who like to read such things: &nb...
My 160L Joule cylinder is rated at 79W, which I presume means 79W/h, so 1.896kW per day. I have no idea what temperature (delta) this is at, but obvio...
My neighbour has his water cylinder (plant room) in a timber built lean-to shed on the side of the house, due to inside space limitations. The shed wa...
It is simply not practical to set the flow temp to 20C for a desired room temp of 20C. The radiators (emitters) cannot emit heat into the room if th...
Agreed, it's totally dependent on the emitters being able to dissipate the heat being produced. Imagine a very large concrete floor with large underfl...
I feel your frustration and anger. I try to lessen those feelings of anxiety by looking at how much we would now be paying for oil had we not ripped...
So you stayed on the variable (non-fixed) Cosy? I know you were considering the fixed Cosy variant when it came out.
Indeed, but I don't expect to import 3kW per day for the 3 month period April - June that this Ofgem pricing period runs for, so overall my bill will ...
A common (hypothetical) scenario: I have an old style CU in the house with MCBs protected with a single RCD protecting multiple rings. I have a radi...
My Email from Greg has finally arrived - I'm on the variable (not fixed) Octopus Cosy tariff where there are 3 rates - a day rate (~30p), a cheap rate...
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Degrees of Separation
Latest Posts
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RE: Heat Pump deployment statistics: June 2026
To my eyes, sat behind all of this is a basic policy ma...
By Temperature_Gradient , 8 hours ago
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Thank you @majordennisbloodnok – that means a lot, part...
By Mars , 12 hours ago
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We’ve just passed 20 million forum views! 🎉
It's official. The Renewable Heating Hub forums have of...
By Mars , 12 hours ago
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RE: Missing flow temperature in Heat Geek proposal
That calculation is reasonable, output is proportional ...
By JamesPa , 15 hours ago
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RE: Recommendations in Ely (Cambs) area for Full setup checks on Nibe HP setup for House.
Have you looked at the Nibe website? They list their ap...
By Lizzie , 16 hours ago
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RE: Why are ASHP installs so expensive?
A not unreasonable position and it wouldn’t be mandator...
By AndrewJ , 16 hours ago
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RE: Who's your electricity provider and what's your tariff?
@batpred When the raw material input has increased in c...
By Papahuhu , 2 days ago
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We kept ours and Heat Geek would have been in touch if ...
By Batpred , 2 days ago
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RE: Starting Our Heat Pump Journey: 1962 build 3 bed detached house
@ian-s I would encourage you to have a conversation ...
By Rob of York , 3 days ago
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RE: Is it the house or the equipment?
Thanks @jamespa The last hard to fix draughts in the...
By springswood , 3 days ago
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RE: Vaillant Arotherm – Using Heating
@l8again Mine is typically using 11w including the i...
By Batpred , 3 days ago
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RE: Next steps on my ASHP journey: Radiators and Pipework
If you have a flowmeter and two temperature probes, the...
By bobflux , 3 days ago
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RE: Siting of the external sensor on a heatpump
@jamespa Absolutely. Even if the same mistake was mad...
By Batpred , 3 days ago
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